Halo 4/5 Grenade
For my design of the Halo 4/5 rendition of the M9 grenade, I went with a modular design that slides together with some alignment features to make sure that all the parts face the correct direction. The pieces were separated by color so that you can print the pieces individually, sand, paint and assemble with ease.
 
Surface features such as the shrapnel wedges, the screws, bevels, etc. were all handcrafted based on photo reference and the overall shape was based on in-game geometry.
 
 
 
Halo 2/3 Grenade
For my design of the Halo 2/3 rendition of the M9 grenade, I went with a very simple design that requires minimal, if any supports.
I went with a conic oval alignment feature that ensures that both the head and body of the grenade can be printed with minimal or no supports (depending on your support angel) but still ensures that the head is aligned correctly with the body. I added some ridges and bevels but tried to not overdo it to retain that simple Halo 2/3 look.
 
 
Halo Reach/CE Grenade
For my rendition of the Halo Reach/CE grenade I went with another simple, body, head, button design. I added some of the details that appear in the texture such as the head screws, indents etc. I was going to attempt the Halo CE grenade aka a potato with a handle, but when I loaded up the Master Chief Collection I saw that Halo: Combat Evolved Anniversary utilized the same grenades as Halo: Reach.
 
All the grenades listed above are all properly toleranced to ensure that all the pieces slide together easily but securely.
You can read more about this model and my experience building it here
 
All my models are designed with a focus on hidden seams, ease of assembly, little to no support printing, and accuracy in mind.
 
If you need any help with the printing or building process, or you just have a prop you would like to see me do, feel free to email me.